1.AC/DC/5 Ah external battery for for over 10 hours 2.Silent ... semiconductor fanMaterialABS MaterialTest marksUL Approved electronics, CE mini fridge for drugs Features Lightness and elegantMini outlook, small size ... charging and discharging, Power saturated, safe using.Suitable for storage of medicines:1. Biological drug-Albumin, ... , thrombin, Reptilase Etc. newest portable mini fridge for drugs